Two bugs surfaced on /tools/verfahrensablauf?side=defendant for upc.inf.cfi:
1. Anchor regression for timing='before' children of court-set parents.
Rules R.109.1 (translation_request) and R.109.4 (interpreter_cost)
anchor on the oral hearing (parent_id=upc.inf.cfi.oral, IsCourtSet)
but were computing dates BEFORE the Statement of Claim — 1 month
resp. 2 weeks before the SoC instead of before the oral hearing.
Root cause: engine walked rules in sequence_order, and the two
"before"-timed children carry sequence_order 45/46 (their chronological
position, before the oral hearing at 50). Their parent had therefore
not been processed yet when the children were, so courtSet[oral.ID]
was still empty → parentIsCourtSet=false → the engine fell back to
the trigger date as the base.
Fix: walk rules in topological order (parent-first) during the
compute pass, then restore sequence_order on the output slice so
the wire shape and the linear timeline view's render order stay
identical to the legacy behaviour modulo the bug fix.
2. Duplicate "Antrag auf Simultanübersetzung" row in columns view.
With primary_party='both' and an explicit side pick (?side=defendant),
the bucketing mirrored the card into both 'Unsere Seite' and
'Gegnerseite' — the same card on the same row, visible as a
duplicate.
Fix: when the user has committed to a perspective (side picked)
but no appellant axis applies, collapse 'both' rows into ours.
The '↔ beide Seiten' indicator is suppressed in that path to match
the existing appellant-collapse semantics (no sibling row to mirror
to). Legacy mirror behaviour is preserved when side is null.
DB audit ruled out a data-level duplicate: exactly one published+active
row per submission_code in paliad.deadline_rules.
Tests:
- pkg/litigationplanner/before_court_set_anchor_test.go: synthetic
rules pinning the conditional-on-court-set-parent contract plus
the override path (1mo before user-pinned oral).
- frontend/src/client/views/verfahrensablauf-core.test.ts: two new
cases pinning the side-collapse routing for party='both'.
